1

/* $Id$ */

     2

     3

#include "stdafx.h"

     4

#include "openttd.h"

     5

#include "currency.h"

     6

#include "news.h"

     7

#include "variables.h"

     8

#include "table/strings.h"

     9

#include "date.h"

    10

    11

	//   exchange rate    prefix             symbol_pos

    12

	//   |  separator        |     postfix   |

    13

	//   |   |    Euro year  |       |       |    name

    14

	//   |   |    |          |       |       |    |

    15

static const CurrencySpec origin_currency_specs[NUM_CURRENCY] = {

    16

	{    1, ',', CF_NOEURO, "£",    "",      0,  STR_CURR_GBP    }, // british pounds

    17

	{    2, ',', CF_NOEURO, "$",    "",      0,  STR_CURR_USD    }, // us dollars

    18

	{    2, ',', CF_ISEURO, "€",    "",      0,  STR_CURR_EUR    }, // Euro

    19

	{  220, ',', CF_NOEURO, "¥",    "",      0,  STR_CURR_YEN    }, // yen

    20

	{   20, ',', 2002,      "",     " S.",   1,  STR_CURR_ATS    }, // austrian schilling

    21

	{   59, ',', 2002,      "BEF ", "",      0,  STR_CURR_BEF    }, // belgian franc

    22

	{    2, ',', CF_NOEURO, "CHF ", "",      0,  STR_CURR_CHF    }, // swiss franc

    23

	{   41, ',', CF_NOEURO, "",     " Kč",   1,  STR_CURR_CZK    }, // czech koruna

    24

	{    3, '.', 2002,      "DM ",  "",      0,  STR_CURR_DEM    }, // deutsche mark

    25

	{   11, '.', CF_NOEURO, "",     " kr",   1,  STR_CURR_DKK    }, // danish krone

    26

	{  245, '.', 2002,      "Pts ", "",      0,  STR_CURR_ESP    }, // spanish pesetas

    27

	{    9, ',', 2002,      "",     " mk",   1,  STR_CURR_FIM    }, // finnish markka

    28

	{   10, '.', 2002,      "FF ",  "",      0,  STR_CURR_FRF    }, // french francs

    29

	{  500, ',', 2002,      "",     "Dr.",   1,  STR_CURR_GRD    }, // greek drachma

    30

	{  378, ',', 2010,      "",     " Ft",   1,  STR_CURR_HUF    }, // hungarian forint

    31

	{  130, '.', CF_NOEURO, "",     " Kr",   1,  STR_CURR_ISK    }, // icelandic krona

    32

	{ 2850, ',', 2002,      "",     " L.",   1,  STR_CURR_ITL    }, // italian lira

    33

	{    3, ',', 2002,      "NLG ", "",      0,  STR_CURR_NLG    }, // dutch gulden

    34

	{   12, '.', CF_NOEURO, "",     " Kr",   1,  STR_CURR_NOK    }, // norwegian krone

    35

	{    6, ' ', CF_NOEURO, "",     " zl",   1,  STR_CURR_PLN    }, // polish zloty

    36

	{    5, '.', CF_NOEURO, "",     " Lei",  1,  STR_CURR_ROL    }, // romanian Lei

    37

	{   50, ' ', CF_NOEURO, "",     " p",    1,  STR_CURR_RUR    }, // russian rouble

    38

	{  352, '.', CF_NOEURO, "",     " SIT",  1,  STR_CURR_SIT    }, // slovenian tolar

    39

	{   13, '.', CF_NOEURO, "",     " Kr",   1,  STR_CURR_SEK    }, // swedish krona

    40

	{    3, '.', CF_NOEURO, "",     " YTL",  1,  STR_CURR_YTL    }, // turkish lira

    41

	{   52, ',', CF_NOEURO, "",     " Sk",   1,  STR_CURR_SKK    }, // slovak koruna

    42

	{    4, ',', CF_NOEURO, "R$ ",  "",      0,  STR_CURR_BRR    }, // brazil real

    43

	{    1, ' ', CF_NOEURO, "",     "",      2,  STR_CURR_CUSTOM }, // custom currency

    44

};

    45

    46

/* Array of currencies used by the system */

    47

CurrencySpec _currency_specs[NUM_CURRENCY];

    48

    49

/**

    50

 * These enums are only declared in order to make sens

    51

 * out of the TTDPatch_To_OTTDIndex array that will follow

    52

 * Every currency used by Ottd is there, just in case TTDPatch will

    53

 * add those missing in its code

    54

 **/

    55

enum {

    56

	CURR_GBP,

    57

	CURR_USD,

    58

	CURR_EUR,

    59

	CURR_YEN,

    60

	CURR_ATS,

    61

	CURR_BEF,

    62

	CURR_CHF,

    63

	CURR_CZK,

    64

	CURR_DEM,

    65

	CURR_DKK,

    66

	CURR_ESP,

    67

	CURR_FIM,

    68

	CURR_FRF,

    69

	CURR_GRD,

    70

	CURR_HUF,

    71

	CURR_ISK,

    72

	CURR_ITL,

    73

	CURR_NLG,

    74

	CURR_NOK,

    75

	CURR_PLN,

    76

	CURR_ROL,

    77

	CURR_RUR,

    78

	CURR_SIT,

    79

	CURR_SEK,

    80

	CURR_YTL,

    81

};

    82

    83

/**

    84

 * This array represent the position of OpenTTD's currencies,

    85

 * compared to TTDPatch's ones.

    86

 * When a grf sends currencies, they are based on the order defined by TTDPatch.

    87

 * So, we must reindex them to our own order.

    88

 **/

    89

const byte TTDPatch_To_OTTDIndex[] =

    90

{

    91

	CURR_GBP,

    92

	CURR_USD,

    93

	CURR_FRF,

    94

	CURR_DEM,

    95

	CURR_YEN,

    96

	CURR_ESP,

    97

	CURR_HUF,

    98

	CURR_PLN,

    99

	CURR_ATS,

   100

	CURR_BEF,

   101

	CURR_DKK,

   102

	CURR_FIM,

   103

	CURR_GRD,

   104

	CURR_CHF,

   105

	CURR_NLG,

   106

	CURR_ITL,

   107

	CURR_SEK,

   108

	CURR_RUR,

   109

	CURR_EUR,

   110

};

   111

   112

/**

   113

 * Will return the ottd's index correspondance to

   114

 * the ttdpatch's id.  If the id is bigger then the array,

   115

 * it is  a grf written for ottd, thus returning the same id.

   116

 * Only called from newgrf.c

   117

 * @param grfcurr_id currency id coming from newgrf

   118

 * @return the corrected index

   119

 **/

   120

byte GetNewgrfCurrencyIdConverted(byte grfcurr_id)

   121

{

   122

	return (grfcurr_id >= lengthof(TTDPatch_To_OTTDIndex)) ? grfcurr_id : TTDPatch_To_OTTDIndex[grfcurr_id];

   123

}

   124

   125

/* get a mask of the allowed currencies depending on the year */

   126

uint GetMaskOfAllowedCurrencies(void)

   127

{

   128

	uint mask = 0;

   129

	uint i;

   130

   131

	for (i = 0; i < NUM_CURRENCY; i++) {

   132

		Year to_euro = _currency_specs[i].to_euro;

   133

   134

		if (to_euro != CF_NOEURO && to_euro != CF_ISEURO && _cur_year >= to_euro) continue;

   135

		if (to_euro == CF_ISEURO && _cur_year < 2000) continue;

   136

		mask |= (1 << i);

   137

	}

   138

	mask |= (1 << CUSTOM_CURRENCY_ID); // always allow custom currency

   139

	return mask;

   140

}

   141

   142

/**

   143

 * Verify if the currency chosen by the user is about to be converted to Euro

   144

 **/

   145

void CheckSwitchToEuro(void)

   146

{

   147

	if (_currency_specs[_opt.currency].to_euro != CF_NOEURO &&

   148

			_currency_specs[_opt.currency].to_euro != CF_ISEURO &&

   149

			_cur_year >= _currency_specs[_opt.currency].to_euro) {

   150

		_opt.currency = 2; // this is the index of euro above.

   151

		AddNewsItem(STR_EURO_INTRODUCE, NEWS_FLAGS(NM_NORMAL, 0, NT_ECONOMY, 0), 0, 0);

   152

	}

   153

}

   154

   155

/**

   156

 * Called only from newgrf.c.  Will fill _currency_specs array with

   157

 * default values from origin_currency_specs

   158

 **/

   159

void ResetCurrencies(void)

   160

{

   161

	memcpy(&_currency_specs, &origin_currency_specs, sizeof(origin_currency_specs));

   162

}

   163

   164

/**

   165

 * Build a list of currency names StringIDs to use in a dropdown list

   166

 * @return Pointer to a (static) array of StringIDs

   167

 */

   168

StringID* BuildCurrencyDropdown(void)

   169

{

   170

	/* Allow room for all currencies, plus a terminator entry */

   171

	static StringID names[CUSTOM_CURRENCY_ID];

   172

	uint i;

   173

   174

	/* Add each name */

   175

	for (i = 0; i < NUM_CURRENCY; i++) {

   176

		names[i] = _currency_specs[i].name;

   177

	}

   178

	/* Terminate the list */

   179

	names[i] = INVALID_STRING_ID;

   180

   181

	return names;

   182

}